/*- * Copyright (c) 1998,1999,2000 Søren Schmidt * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer, * without modification, immediately at the beginning of the file. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD$ */ /* ATA register defines */ #define ATA_DATA 0x00 /* data register */ #define ATA_ERROR 0x01 /* (R) error register */ #define ATA_E_NM 0x02 /* no media */ #define ATA_E_ABORT 0x04 /* command aborted */ #define ATA_E_MCR 0x08 /* media change request */ #define ATA_E_IDNF 0x10 /* ID not found */ #define ATA_E_MC 0x20 /* media changed */ #define ATA_E_UNC 0x40 /* uncorrectable data */ #define ATA_E_ICRC 0x80 /* UDMA crc error */ #define ATA_FEATURE 0x01 /* (W) feature register */ #define ATA_F_DMA 0x01 /* enable DMA */ #define ATA_F_OVL 0x02 /* enable overlap */ #define ATA_COUNT 0x02 /* (W) sector count */ #define ATA_IREASON 0x02 /* (R) interrupt reason */ #define ATA_I_CMD 0x01 /* cmd (1) | data (0) */ #define ATA_I_IN 0x02 /* read (1) | write (0) */ #define ATA_I_RELEASE 0x04 /* released bus (1) */ #define ATA_I_TAGMASK 0xf8 /* tag mask */ #define ATA_SECTOR 0x03 /* sector # */ #define ATA_CYL_LSB 0x04 /* cylinder# LSB */ #define ATA_CYL_MSB 0x05 /* cylinder# MSB */ #define ATA_DRIVE 0x06 /* Sector/Drive/Head register */ #define ATA_D_LBA 0x40 /* use LBA adressing */ #define ATA_D_IBM 0xa0 /* 512 byte sectors, ECC */ #define ATA_CMD 0x07 /* command register */ #define ATA_C_NOP 0x00 /* NOP command */ #define ATA_C_F_FLUSHQUEUE 0x00 /* flush queued cmd's */ #define ATA_C_F_AUTOPOLL 0x01 /* start autopoll function */ #define ATA_C_ATAPI_RESET 0x08 /* reset ATAPI device */ #define ATA_C_READ 0x20 /* read command */ #define ATA_C_WRITE 0x30 /* write command */ #define ATA_C_PACKET_CMD 0xa0 /* packet command */ #define ATA_C_ATAPI_IDENTIFY 0xa1 /* get ATAPI params*/ #define ATA_C_SERVICE 0xa2 /* service command */ #define ATA_C_READ_MUL 0xc4 /* read multi command */ #define ATA_C_WRITE_MUL 0xc5 /* write multi command */ #define ATA_C_SET_MULTI 0xc6 /* set multi size command */ #define ATA_C_READ_DMA_QUEUED 0xc7 /* read w/DMA QUEUED command */ #define ATA_C_READ_DMA 0xc8 /* read w/DMA command */ #define ATA_C_WRITE_DMA 0xca /* write w/DMA command */ #define ATA_C_WRITE_DMA_QUEUED 0xcc /* write w/DMA QUEUED command */ #define ATA_C_FLUSHCACHE 0xe7 /* flush cache to disk */ #define ATA_C_ATA_IDENTIFY 0xec /* get ATA params */ #define ATA_C_SETFEATURES 0xef /* features command */ #define ATA_C_F_SETXFER 0x03 /* set transfer mode */ #define ATA_C_F_ENAB_WCACHE 0x02 /* enable write cache */ #define ATA_C_F_DIS_WCACHE 0x82 /* disable write cache */ #define ATA_C_F_ENAB_RCACHE 0xaa /* enable readahead cache */ #define ATA_C_F_DIS_RCACHE 0x55 /* disable readahead cache */ #define ATA_C_F_ENAB_RELIRQ 0x5d /* enable release interrupt */ #define ATA_C_F_DIS_RELIRQ 0xdd /* disable release interrupt */ #define ATA_C_F_ENAB_SRVIRQ 0x5e /* enable service interrupt */ #define ATA_C_F_DIS_SRVIRQ 0xde /* disable service interrupt */ #define ATA_STATUS 0x07 /* status register */ #define ATA_S_ERROR 0x01 /* error */ #define ATA_S_INDEX 0x02 /* index */ #define ATA_S_CORR 0x04 /* data corrected */ #define ATA_S_DRQ 0x08 /* data request */ #define ATA_S_DSC 0x10 /* drive seek completed */ #define ATA_S_SERVICE 0x10 /* drive needs service */ #define ATA_S_DWF 0x20 /* drive write fault */ #define ATA_S_DMA 0x20 /* DMA ready */ #define ATA_S_READY 0x40 /* drive ready */ #define ATA_S_BUSY 0x80 /* busy */ #define ATA_ALTOFFSET 0x206 /* alternate registers offset */ #define ATA_ALTIOSIZE 0x01 /* alternate registers size */ #define ATA_A_IDS 0x02 /* disable interrupts */ #define ATA_A_RESET 0x04 /* RESET controller */ #define ATA_A_4BIT 0x08 /* 4 head bits */ /* misc defines */ #define ATA_MASTER 0x00 #define ATA_SLAVE 0x10 #define ATA_IOSIZE 0x08 #define ATA_OP_FINISHED 0x00 #define ATA_OP_CONTINUES 0x01 #define ATA_DEV(device) ((device == ATA_MASTER) ? 0 : 1) #define ATA_PARAM(scp, device) (scp->dev_param[ATA_DEV(device)]) /* busmaster DMA related defines */ #define ATA_BM_OFFSET1 0x08 #define ATA_DMA_ENTRIES 256 #define ATA_DMA_EOT 0x80000000 #define ATA_BMCMD_PORT 0x00 #define ATA_BMCMD_START_STOP 0x01 #define ATA_BMCMD_WRITE_READ 0x08 #define ATA_BMSTAT_PORT 0x02 #define ATA_BMSTAT_ACTIVE 0x01 #define ATA_BMSTAT_ERROR 0x02 #define ATA_BMSTAT_INTERRUPT 0x04 #define ATA_BMSTAT_MASK 0x07 #define ATA_BMSTAT_DMA_MASTER 0x20 #define ATA_BMSTAT_DMA_SLAVE 0x40 #define ATA_BMSTAT_DMA_SIMPLEX 0x80 #define ATA_BMDTP_PORT 0x04 #define ATA_BMIOSIZE 0x20 /* structure for holding DMA address data */ struct ata_dmaentry { u_int32_t base; u_int32_t count; }; /* ATA/ATAPI device parameter information */ struct ata_params { u_int8_t cmdsize :2; /* packet command size */ #define ATAPI_PSIZE_12 0 /* 12 bytes */ #define ATAPI_PSIZE_16 1 /* 16 bytes */ u_int8_t :3; u_int8_t drqtype :2; /* DRQ type */ #define ATAPI_DRQT_MPROC 0 /* cpu 3 ms delay */ #define ATAPI_DRQT_INTR 1 /* intr 10 ms delay */ #define ATAPI_DRQT_ACCEL 2 /* accel 50 us delay */ u_int8_t removable :1; /* device is removable */ u_int8_t device_type :5; /* device type */ #define ATAPI_TYPE_DIRECT 0 /* disk/floppy */ #define ATAPI_TYPE_TAPE 1 /* streaming tape */ #define ATAPI_TYPE_CDROM 5 /* CD-ROM device */ #define ATAPI_TYPE_OPTICAL 7 /* optical disk */ u_int8_t :1; u_int8_t proto :2; /* command protocol */ #define ATAPI_PROTO_ATAPI 2 u_int16_t cylinders; /* number of cylinders */ u_int16_t reserved2; u_int16_t heads; /* # heads */ u_int16_t unfbytespertrk; /* # unformatted bytes/track */ u_int16_t unfbytes; /* # unformatted bytes/sector */ u_int16_t sectors; /* # sectors/track */ u_int16_t vendorunique0[3]; u_int8_t serial[20]; /* serial number */ u_int16_t buffertype; /* buffer type */ #define ATA_BT_SINGLEPORTSECTOR 1 /* 1 port, 1 sector buffer */ #define ATA_BT_DUALPORTMULTI 2 /* 2 port, mult sector buffer */ #define ATA_BT_DUALPORTMULTICACHE 3 /* above plus track cache */ u_int16_t buffersize; /* buf size, 512-byte units */ u_int16_t necc; /* ecc bytes appended */ u_int8_t revision[8]; /* firmware revision */ u_int8_t model[40]; /* model name */ u_int8_t nsecperint; /* sectors per interrupt */ u_int8_t vendorunique1; u_int16_t usedmovsd; /* double word read/write? */ u_int8_t vendorcap; /* vendor capabilities */ u_int8_t dmaflag :1; /* DMA supported - always 1 */ u_int8_t lbaflag :1; /* LBA supported - always 1 */ u_int8_t iordydis :1; /* IORDY may be disabled */ u_int8_t iordyflag :1; /* IORDY supported */ u_int8_t softreset :1; /* needs softreset when busy */ u_int8_t stdby_ovlap :1; /* standby/overlap supported */ u_int8_t queueing :1; /* supports queuing overlap */ u_int8_t idmaflag :1; /* interleaved DMA supported */ u_int16_t capvalidate; /* validation for above */ u_int8_t vendorunique3; u_int8_t opiomode; /* PIO modes 0-2 */ u_int8_t vendorunique4; u_int8_t odmamode; /* old DMA modes, not ATA-3 */ u_int16_t atavalid; /* fields valid */ #define ATA_FLAG_54_58 1 /* words 54-58 valid */ #define ATA_FLAG_64_70 2 /* words 64-70 valid */ #define ATA_FLAG_88 4 /* word 88 valid */ u_int16_t currcyls; u_int16_t currheads; u_int16_t currsectors; u_int16_t currsize0; u_int16_t currsize1; u_int8_t currmultsect; u_int8_t multsectvalid; u_int32_t lbasize; u_int16_t sdmamodes; /* singleword DMA modes */ u_int16_t wdmamodes; /* multiword DMA modes */ u_int16_t apiomodes; /* advanced PIO modes */ u_int16_t mwdmamin; /* min. M/W DMA time/word ns */ u_int16_t mwdmarec; /* rec. M/W DMA time ns */ u_int16_t pioblind; /* min. PIO cycle w/o flow */ u_int16_t pioiordy; /* min. PIO cycle IORDY flow */ u_int16_t reserved69; u_int16_t reserved70; u_int16_t rlsovlap; /* rel time (us) for overlap */ u_int16_t rlsservice; /* rel time (us) for service */ u_int16_t reserved73; u_int16_t reserved74; u_int16_t queuelen:5; u_int16_t :11; u_int16_t reserved76; u_int16_t reserved77; u_int16_t reserved78; u_int16_t reserved79; u_int16_t versmajor; u_int16_t versminor; u_int16_t featsupp1; /* 82 */ u_int16_t supmicrocode:1; u_int16_t supqueued:1; u_int16_t supcfa:1; u_int16_t supapm:1; u_int16_t suprmsn:1; u_int16_t :11; u_int16_t featsupp3; /* 84 */ u_int16_t featenab1; /* 85 */ u_int16_t enabmicrocode:1; u_int16_t enabqueued:1; u_int16_t enabcfa:1; u_int16_t enabapm:1; u_int16_t enabrmsn:1; u_int16_t :11; u_int16_t featenab3; /* 87 */ u_int16_t udmamodes; /* UltraDMA modes */ u_int16_t erasetime; u_int16_t enherasetime; u_int16_t apmlevel; u_int16_t masterpasswdrev; u_int16_t masterhwres :8; u_int16_t slavehwres :5; u_int16_t cblid :1; u_int16_t reserved93_1415 :2; u_int16_t reserved94[32]; u_int16_t rmvstat; u_int16_t securstat; u_int16_t reserved129[30]; u_int16_t cfapwrmode; u_int16_t reserved161[84]; u_int16_t integrity; }; /* structure describing an ATA device */ struct ata_softc { struct device *dev; /* device handle */ int channel; /* channel on this controller */ struct resource *r_io; /* io addr resource handle */ struct resource *r_altio; /* altio addr resource handle */ struct resource *r_bmio; /* bmio addr resource handle */ struct resource *r_irq; /* interrupt of this channel */ void *ih; /* interrupt handle */ u_int32_t ioaddr; /* physical port addr */ u_int32_t altioaddr; /* physical alt port addr */ u_int32_t bmaddr; /* physical bus master port */ u_int32_t chiptype; /* pciid of controller chip */ u_int32_t alignment; /* dma engine min alignment */ struct ata_params *dev_param[2]; /* ptr to devices params */ void *dev_softc[2]; /* ptr to devices softc's */ int mode[2]; /* transfer mode for devices */ #define ATA_PIO 0x00 #define ATA_PIO0 0x08 #define ATA_PIO1 0x09 #define ATA_PIO2 0x0a #define ATA_PIO3 0x0b #define ATA_PIO4 0x0c #define ATA_DMA 0x10 #define ATA_WDMA2 0x22 #define ATA_UDMA2 0x42 #define ATA_UDMA4 0x44 #define ATA_UDMA5 0x45 int flags; /* controller flags */ #define ATA_DMA_ACTIVE 0x01 #define ATA_ATAPI_DMA_RO 0x02 #define ATA_USE_16BIT 0x04 #define ATA_ATTACHED 0x08 #define ATA_QUEUED 0x10 #define ATA_RAID 0x20 int devices; /* what is present */ #define ATA_ATA_MASTER 0x01 #define ATA_ATA_SLAVE 0x02 #define ATA_ATAPI_MASTER 0x04 #define ATA_ATAPI_SLAVE 0x08 u_int8_t status; /* last controller status */ u_int8_t error; /* last controller error */ int active; /* active processing request */ #define ATA_IDLE 0x0 #define ATA_IMMEDIATE 0x1 #define ATA_WAIT_INTR 0x2 #define ATA_WAIT_READY 0x3 #define ATA_ACTIVE 0x4 #define ATA_ACTIVE_ATA 0x5 #define ATA_ACTIVE_ATAPI 0x6 #define ATA_REINITING 0x7 TAILQ_HEAD(, ad_request) ata_queue; /* head of ATA queue */ TAILQ_HEAD(, atapi_request) atapi_queue; /* head of ATAPI queue */ void *running; /* currently running request */ }; /* externs */ extern devclass_t ata_devclass; /* public prototypes */ void ata_start(struct ata_softc *); void ata_reset(struct ata_softc *, int *); int ata_reinit(struct ata_softc *); int ata_wait(struct ata_softc *, int, u_int8_t); int ata_command(struct ata_softc *, int, u_int8_t, u_int16_t, u_int8_t, u_int8_t, u_int8_t, u_int8_t, int); int ata_printf(struct ata_softc *, int, const char *, ...) __printflike(3, 4); int ata_get_lun(u_int32_t *); void ata_free_lun(u_int32_t *, int); char *ata_mode2str(int); int ata_pio2mode(int); int ata_pmode(struct ata_params *); int ata_wmode(struct ata_params *); int ata_umode(struct ata_params *); #if NPCI > 0 int ata_find_dev(device_t, u_int32_t, u_int32_t); #endif void *ata_dmaalloc(struct ata_softc *, int); void ata_dmainit(struct ata_softc *, int, int, int, int); int ata_dmasetup(struct ata_softc *, int, struct ata_dmaentry *, caddr_t, int); void ata_dmastart(struct ata_softc *, int, struct ata_dmaentry *, int); int ata_dmastatus(struct ata_softc *); int ata_dmadone(struct ata_softc *);